Spinning frame



N N\ N\ N INVENTOR W B W M ATTORNEY SPINNING FRAME Filed Feb. 4, 1927 J.P. GAREY Patented July 24, 1928.

PATENT OFFICE.

JOHN P, GAREY, OF ELMIRA HEIGHTS, NEW YORK.

SPINNING FRAME.

Application filed February 4, 1927. Serial No. 165,787.

This invention relates to spinning frames, and aims to reduce the amountof labor required in tending such machines, by providing improved meansfor aligning the upper drawing rolls.

Owing to the fact that it is frequently necessary to remove the upperdrawing rolls, it has heretofore been customary to Journal the ends ofsuch rolls in open rectangular recesses in the fingers of the cap bar.The lubricant which must be supplied to the bearings thus providedcauses the fly to collect in the recesses, so that, in order to secureproper operation of the upper rolls, 1t is necessary at frequentintervals to pick out this fly from the end bearings.

The present invention .aims to elimlnato the collection of fly at theend bearings of top rolls, removal of the top rolls. Since the top rollsrest upon and are supported by the lower rolls which drive them, the endbearings of the top rolls do not have to carry the weight of the toprolls or to resist the pressure applied to the top rolls by the sad dle,but need only restrain the ends of the top rolls against sidewisemovement so as to keep them parallel to the axes of the lower rolls. Ihave found that, because of the comparatively slight strain on the endbearings, it is possible to do away with all lubrication at the ends ofthe top rolls. This is accomplished in accordance with the invention byproviding the top rollswith end bearings. each of which comprisescooperating metallic and non-metallic cylindrical bearing surfaces.

The manner in which the invention is carried out may best be understoodfrom a detailed description of a specific embodiment of it shown in theaccompanying drawings, in which:

Fig. 1 is a front elevation of the drawing rolls of a spinning frame,showing parts of the roll stand supporting them;

Fig. 2 is an end elevation sectioned on the line 2-2 of Fig. 1; and

Fig. 3 is a fragmentary top view, showing one of the top rolls in axialsection.

The upper rolls 13, 14, 15 are made of metal, although the rolls are, ofcourse, provided with the usual friction coverings 10, 10, 11, 11, 12,12. Each of the rolls is provided with an axial bore 16 in each of itsends. The end bearings for the front rolls without interfering with theeasy.

are provided by non-metallic studs 18, each of which has a square head19 adapted to fit loosely in one of the square recesses 20 customarilyprovided in the fingers F of the cap bar G, and a round shank 21,fitting loosely within one of the bores 16. Since the heads 19 of thestuds 18 hold them against turnlng, the bearings about which the rollsrotate are formed by the cooperating cylindrical surfaces of the bores16 and the shanks 21 of the studs. The need for lubricating thesebearing surfaces is avoided by making the studs of non-metallicmaterial, about which the metal rolls revolve without material frictionwhen no lubricant is used. Compressed wood fibre has been found adesirable material for the studs.

The fact that the end bearings are enclosed within the rolls, and moreespecially the fact that no lubricant is used on these bearings, preventthe collection of fly on them. At the same time, the top rolls may beremoved from the fingers of the cap bar as easily as when the openbearings heretofore customarily were provided.

The invention is not limited to the specific structure disclosed. Thuswhile it is desirable that the bores in opposite ends of each rollterminate within the enlarged portions of the roll, so that the roll isnot weakened by the bores, it is nevertheless possible to extend thesebores until they meet, which amounts to providing a single boreextending through the entire length of the roll. In this case, theshanks may be similarly extended and joined to provide a fixednon-metallic arbor on which the roll may rotate.

What I claim is:

1. In a. spinning frame having upper rolls, and lower rolls on which theupper rolls rest, the combination of metal upper rolls and non-metallicbearing pieces engaging said rolls and holding them parallel to the axesof the lower rolls.

2. In a spinning frame, the combination with a cap bar containingnon-circular recesses, of a single piece of metal providing a top rollhaving spaced enlargements, and having in the outer end of eachenlargement a separate axial bore which terminates within thatenlargement, and bearing studs having round shanks entering said boresand non-circular heads loosely resting in the recesses of the cap barand restrained against rotation thereby.

3. In a spinning frame having a cap bar, the combination of a metalupper roll con taining bores in its ends, and non-metallic bearing studshaving round shanks entering 5 said bores and non-circular heads restingin recesses in the cap bar.

4. In a spinning frame having a cap bar, the combination of a metal topr011 having bores in its ends and bearing studs having 10 round shanksof compressed Wood fibre en tering said bores and square heads restingin recesses in fingers of the cap bar.

5. In a spinning frame, the combination of a metal top roll containingan axial bore, and an externally-supported, non-metallic mem- 15 herproviding a cylindrical bearing surface Within said bore.

In testimony whereof I have hereunto set my hand.

JOHN P. GAREY.

